Question

The tables show some input and output values:
Table A
Input Output
1 7
2 9
3 9
4 5
Table B
Input Output
6 1
7 3
7 2
8 5
Which tables represent functions?
Only A
Only B
Both A and B
Neither A nor B

Answer 1

The answer is 2.Only B because, functions can't have input values of the same number. Table B has 7, 3 & 7,2 which both have 7 as their input value. 

Answer 2

Answer:

I think @Toko2chanoqoy56 was trying to say functions can't have the same output, otherwise what he is saying makes absolutley no sense.

Step-by-step explanation: